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Summary Future Minimum Payments For Operating Leases and Capital Leases (Detail)
$ in Millions
Dec. 31, 2015
USD ($)
Operating Leases  
2016 $ 2.8
2017 1.3
2018 0.6
2019 0.5
2020 0.5
Thereafter 2.3
Total 8.0
Capital Leases  
2016 2.4
2017 1.2
2018 0.5
2019 0.1
Total $ 4.2